/*
Copyright (C) 1997-2001 Id Software, Inc.

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/*
==============================================================================

flyer

==============================================================================
*/

#include "g_local.h"
#include "m_flyer.h"

qboolean visible(edict_t *self, edict_t *other);

static int  nextmove;           // Used for start/stop frames

static int  sound_sight;
static int  sound_idle;
static int  sound_pain1;
static int  sound_pain2;
static int  sound_slash;
static int  sound_sproing;
static int  sound_die;


void flyer_check_melee(edict_t *self);
void flyer_loop_melee(edict_t *self);
void flyer_melee(edict_t *self);
void flyer_setstart(edict_t *self);
void flyer_stand(edict_t *self);
void flyer_nextmove(edict_t *self);


void flyer_sight(edict_t *self, edict_t *other)
{
    gi.sound(self, CHAN_VOICE, sound_sight, 1, ATTN_NORM, 0);
}

void flyer_idle(edict_t *self)
{
    gi.sound(self, CHAN_VOICE, sound_idle, 1, ATTN_IDLE, 0);
}

void flyer_pop_blades(edict_t *self)
{
    gi.sound(self, CHAN_VOICE, sound_sproing, 1, ATTN_NORM, 0);
}


mframe_t flyer_frames_stand [] = {
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL },
    { ai_stand, 0, NULL }
};
mmove_t flyer_move_stand = {FRAME_stand01, FRAME_stand45, flyer_frames_stand, NULL};


mframe_t flyer_frames_walk [] = {
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL },
    { ai_walk, 5, NULL }
};
mmove_t flyer_move_walk = {FRAME_stand01, FRAME_stand45, flyer_frames_walk, NULL};

mframe_t flyer_frames_run [] = {
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL },
    { ai_run, 10, NULL }
};
mmove_t flyer_move_run = {FRAME_stand01, FRAME_stand45, flyer_frames_run, NULL};

void flyer_run(edict_t *self)
{
    if (self->monsterinfo.aiflags & AI_STAND_GROUND)
        self->monsterinfo.currentmove = &flyer_move_stand;
    else
        self->monsterinfo.currentmove = &flyer_move_run;
}

void flyer_walk(edict_t *self)
{
    self->monsterinfo.currentmove = &flyer_move_walk;
}

void flyer_stand(edict_t *self)
{
    self->monsterinfo.currentmove = &flyer_move_stand;
}

mframe_t flyer_frames_start [] = {
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, flyer_nextmove }
};
mmove_t flyer_move_start = {FRAME_start01, FRAME_start06, flyer_frames_start, NULL};

mframe_t flyer_frames_stop [] = {
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, flyer_nextmove }
};
mmove_t flyer_move_stop = {FRAME_stop01, FRAME_stop07, flyer_frames_stop, NULL};

void flyer_stop(edict_t *self)
{
    self->monsterinfo.currentmove = &flyer_move_stop;
}

void flyer_start(edict_t *self)
{
    self->monsterinfo.currentmove = &flyer_move_start;
}


mframe_t flyer_frames_rollright [] = {
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL }
};
mmove_t flyer_move_rollright = {FRAME_rollr01, FRAME_rollr09, flyer_frames_rollright, NULL};

mframe_t flyer_frames_rollleft [] = {
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL }
};
mmove_t flyer_move_rollleft = {FRAME_rollf01, FRAME_rollf09, flyer_frames_rollleft, NULL};

mframe_t flyer_frames_pain3 [] = {
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL }
};
mmove_t flyer_move_pain3 = {FRAME_pain301, FRAME_pain304, flyer_frames_pain3, flyer_run};

mframe_t flyer_frames_pain2 [] = {
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL }
};
mmove_t flyer_move_pain2 = {FRAME_pain201, FRAME_pain204, flyer_frames_pain2, flyer_run};

mframe_t flyer_frames_pain1 [] = {
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL }
};
mmove_t flyer_move_pain1 = {FRAME_pain101, FRAME_pain109, flyer_frames_pain1, flyer_run};

mframe_t flyer_frames_defense [] = {
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },       // Hold this frame
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL }
};
mmove_t flyer_move_defense = {FRAME_defens01, FRAME_defens06, flyer_frames_defense, NULL};

mframe_t flyer_frames_bankright [] = {
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL }
};
mmove_t flyer_move_bankright = {FRAME_bankr01, FRAME_bankr07, flyer_frames_bankright, NULL};

mframe_t flyer_frames_bankleft [] = {
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL },
    { ai_move, 0, NULL }
};
mmove_t flyer_move_bankleft = {FRAME_bankl01, FRAME_bankl07, flyer_frames_bankleft, NULL};


void flyer_fire(edict_t *self, int flash_number)
{
    vec3_t  start;
    vec3_t  forward, right;
    vec3_t  end;
    vec3_t  dir;
    int     effect;

    if ((self->s.frame == FRAME_attak204) || (self->s.frame == FRAME_attak207) || (self->s.frame == FRAME_attak210))
        effect = EF_HYPERBLASTER;
    else
        effect = 0;
    AngleVectors(self->s.angles, forward, right, NULL);
    G_ProjectSource(self->s.origin, monster_flash_offset[flash_number], forward, right, start);

    VectorCopy(self->enemy->s.origin, end);
    end[2] += self->enemy->viewheight;
    VectorSubtract(end, start, dir);

    monster_fire_blaster(self, start, dir, 1, 1000, flash_number, effect);
}

void flyer_fireleft(edict_t *self)
{
    flyer_fire(self, MZ2_FLYER_BLASTER_1);
}

void flyer_fireright(edict_t *self)
{
    flyer_fire(self, MZ2_FLYER_BLASTER_2);
}


mframe_t flyer_frames_attack2 [] = {
    { ai_charge, 0, NULL },
    { ai_charge, 0, NULL },
    { ai_charge, 0, NULL },
    { ai_charge, -10, flyer_fireleft },         // left gun
    { ai_charge, -10, flyer_fireright },        // right gun
    { ai_charge, -10, flyer_fireleft },         // left gun
    { ai_charge, -10, flyer_fireright },        // right gun
    { ai_charge, -10, flyer_fireleft },         // left gun
    { ai_charge, -10, flyer_fireright },        // right gun
    { ai_charge, -10, flyer_fireleft },         // left gun
    { ai_charge, -10, flyer_fireright },        // right gun
    { ai_charge, 0, NULL },
    { ai_charge, 0, NULL },
    { ai_charge, 0, NULL },
    { ai_charge, 0, NULL },
    { ai_charge, 0, NULL },
    { ai_charge, 0, NULL }
};
mmove_t flyer_move_attack2 = {FRAME_attak201, FRAME_attak217, flyer_frames_attack2, flyer_run};


void flyer_slash_left(edict_t *self)
{
    vec3_t  aim;

    VectorSet(aim, MELEE_DISTANCE, self->mins[0], 0);
    fire_hit(self, aim, 5, 0);
    gi.sound(self, CHAN_WEAPON, sound_slash, 1, ATTN_NORM, 0);
}

void flyer_slash_right(edict_t *self)
{
    vec3_t  aim;

    VectorSet(aim, MELEE_DISTANCE, self->maxs[0], 0);
    fire_hit(self, aim, 5, 0);
    gi.sound(self, CHAN_WEAPON, sound_slash, 1, ATTN_NORM, 0);
}

mframe_t flyer_frames_start_melee [] = {
    { ai_charge, 0, flyer_pop_blades },
    { ai_charge, 0, NULL },
    { ai_charge, 0, NULL },
    { ai_charge, 0, NULL },
    { ai_charge, 0, NULL },
    { ai_charge, 0, NULL }
};
mmove_t flyer_move_start_melee = {FRAME_attak101, FRAME_attak106, flyer_frames_start_melee, flyer_loop_melee};

mframe_t flyer_frames_end_melee [] = {
    { ai_charge, 0, NULL },
    { ai_charge, 0, NULL },
    { ai_charge, 0, NULL }
};
mmove_t flyer_move_end_melee = {FRAME_attak119, FRAME_attak121, flyer_frames_end_melee, flyer_run};


mframe_t flyer_frames_loop_melee [] = {
    { ai_charge, 0, NULL },     // Loop Start
    { ai_charge, 0, NULL },
    { ai_charge, 0, flyer_slash_left },     // Left Wing Strike
    { ai_charge, 0, NULL },
    { ai_charge, 0, NULL },
    { ai_charge, 0, NULL },
    { ai_charge, 0, NULL },
    { ai_charge, 0, flyer_slash_right },    // Right Wing Strike
    { ai_charge, 0, NULL },
    { ai_charge, 0, NULL },
    { ai_charge, 0, NULL },
    { ai_charge, 0, NULL }      // Loop Ends

};
mmove_t flyer_move_loop_melee = {FRAME_attak107, FRAME_attak118, flyer_frames_loop_melee, flyer_check_melee};

void flyer_loop_melee(edict_t *self)
{
    /*  if (random() <= 0.5)
            self->monsterinfo.currentmove = &flyer_move_attack1;
        else */
    self->monsterinfo.currentmove = &flyer_move_loop_melee;
}



void flyer_attack(edict_t *self)
{
    /*  if (random() <= 0.5)
            self->monsterinfo.currentmove = &flyer_move_attack1;
        else */
    self->monsterinfo.currentmove = &flyer_move_attack2;
}

void flyer_setstart(edict_t *self)
{
    nextmove = ACTION_run;
    self->monsterinfo.currentmove = &flyer_move_start;
}

void flyer_nextmove(edict_t *self)
{
    if (nextmove == ACTION_attack1)
        self->monsterinfo.currentmove = &flyer_move_start_melee;
    else if (nextmove == ACTION_attack2)
        self->monsterinfo.currentmove = &flyer_move_attack2;
    else if (nextmove == ACTION_run)
        self->monsterinfo.currentmove = &flyer_move_run;
}

void flyer_melee(edict_t *self)
{
//  flyer.nextmove = ACTION_attack1;
//  self->monsterinfo.currentmove = &flyer_move_stop;
    self->monsterinfo.currentmove = &flyer_move_start_melee;
}

void flyer_check_melee(edict_t *self)
{
    if (range(self, self->enemy) == RANGE_MELEE)
        if (random() <= 0.8)
            self->monsterinfo.currentmove = &flyer_move_loop_melee;
        else
            self->monsterinfo.currentmove = &flyer_move_end_melee;
    else
        self->monsterinfo.currentmove = &flyer_move_end_melee;
}

void flyer_pain(edict_t *self, edict_t *other, float kick, int damage)
{
    int     n;

    if (self->health < (self->max_health / 2))
        self->s.skinnum = 1;

    if (level.time < self->pain_debounce_time)
        return;

    self->pain_debounce_time = level.time + 3;
    if (skill->value == 3)
        return;     // no pain anims in nightmare

    n = rand() % 3;
    if (n == 0) {
        gi.sound(self, CHAN_VOICE, sound_pain1, 1, ATTN_NORM, 0);
        self->monsterinfo.currentmove = &flyer_move_pain1;
    } else if (n == 1) {
        gi.sound(self, CHAN_VOICE, sound_pain2, 1, ATTN_NORM, 0);
        self->monsterinfo.currentmove = &flyer_move_pain2;
    } else {
        gi.sound(self, CHAN_VOICE, sound_pain1, 1, ATTN_NORM, 0);
        self->monsterinfo.currentmove = &flyer_move_pain3;
    }
}


void flyer_die(edict_t *self, edict_t *inflictor, edict_t *attacker, int damage, vec3_t point)
{
    gi.sound(self, CHAN_VOICE, sound_die, 1, ATTN_NORM, 0);
    BecomeExplosion1(self);
}


/*QUAKED monster_flyer (1 .5 0) (-16 -16 -24) (16 16 32) Ambush Trigger_Spawn Sight
*/
void SP_monster_flyer(edict_t *self)
{
    if (deathmatch->value) {
        G_FreeEdict(self);
        return;
    }

    // fix a map bug in jail5.bsp
    if (!Q_stricmp(level.mapname, "jail5") && (self->s.origin[2] == -104)) {
        self->targetname = self->target;
        self->target = NULL;
    }

    sound_sight = gi.soundindex("flyer/flysght1.wav");
    sound_idle = gi.soundindex("flyer/flysrch1.wav");
    sound_pain1 = gi.soundindex("flyer/flypain1.wav");
    sound_pain2 = gi.soundindex("flyer/flypain2.wav");
    sound_slash = gi.soundindex("flyer/flyatck2.wav");
    sound_sproing = gi.soundindex("flyer/flyatck1.wav");
    sound_die = gi.soundindex("flyer/flydeth1.wav");

    gi.soundindex("flyer/flyatck3.wav");

    self->s.modelindex = gi.modelindex("models/monsters/flyer/tris.md2");
    VectorSet(self->mins, -16, -16, -24);
    VectorSet(self->maxs, 16, 16, 32);
    self->movetype = MOVETYPE_STEP;
    self->solid = SOLID_BBOX;

    self->s.sound = gi.soundindex("flyer/flyidle1.wav");

    self->health = 50;
    self->mass = 50;

    self->pain = flyer_pain;
    self->die = flyer_die;

    self->monsterinfo.stand = flyer_stand;
    self->monsterinfo.walk = flyer_walk;
    self->monsterinfo.run = flyer_run;
    self->monsterinfo.attack = flyer_attack;
    self->monsterinfo.melee = flyer_melee;
    self->monsterinfo.sight = flyer_sight;
    self->monsterinfo.idle = flyer_idle;

    gi.linkentity(self);

    self->monsterinfo.currentmove = &flyer_move_stand;
    self->monsterinfo.scale = MODEL_SCALE;

    flymonster_start(self);
}
